After work by Welsh university marine partnership Seacams on tidal currents and seabed conditions, it targeted waters off the coast at South Stack, Holyhead.

Plans for the project, called Holyhead Deep, will go on display on May 21 at Holyhead Town Hall.

The company said the project design and environmental impact assessment were progressing.

The firm wants to place 20, 12-metre-wide kites in the sea at depths of around 80m which are then tethered to bases on the seabed.

Minesto has put in a request for a screening opinion to Anglesey Council for an initial three kites that would produce 1.5MW of power.

Should this prove a success they then plan another 17 kites. They also want permission to bring the power on shore at Penrhos beach.

If they are given the go-ahead work could start by the summer of 2016.

Joanna Lester, senior environmental consultant with Minesto agents Xodus Group, said: “The principal purpose of the 1.5MW Holyhead Deep Green Project is to demonstrate the first full-scale installation of the devices and verify the viability of the array concept.

“Should the project prove successful Minesto intends to apply for a consent to install a further 17 units which will connect to the export cable installed as part of the 1.5MW Holyhead Deep Project.”

Any concerns over the impact on sealife are being addressed, with sonar technology being trialled to ensure mammals like seals, dolphins and porpoises are not injured by the kites.

Extensive work has been carried out by Seacams on the seabed conditions and tidal currents which have been studied by Minesto.

Following this screening opinion, a full planning application is expected in September.

This ties in with plan to make Anglesey an Energy Island with nuclear, biomass, wind, and tidal power schemes developed.